Quant Comaparison - Please help

[vikasapkal]

Q1.
Column A
Value of n if
nc17=nc13

Column B
Value of k if
kc9=kc21

Q2.
After 3 females leave a party, there are thrice as many males as females. After 8 males leave the party, there are twice as many males as females.

Column A
Total no. of people
left at party after
8 males leave

Column B
24

Q3. There is a series ‘S’ with ‘n’ positive integers, where |n-5|< 3.

Col A: Mean of the n integers
Col B: Median of the series

[tommywallach]

Hey Vika,

Please post these as three separate posts, with either the source or at least the overall math category as part of the title. Otherwise, these threads become very confusing to other people reading.

Thanks so much!

-t

P.S. Also, I'm not quite sure what nc17 means, so I couldn't answer that first one right now anyway.